I have TP-LINK 3G/3.75G Wireless N Router Model # TL-MR3420 which is compatible with Telenor 3G USB ZTE MF190. With quick setup I have successfully configured the router, but the router does not connect with 3G ZTE MF190. I even called the Telenor helpline, they say that, they've no support for TP-LINK.

i Want To Add External Battery In My TL-MR3420 .. Is It Possible . Any One Try It Or Not . I Have Always Power Problem In My Home That's Why i Need Battery For My TL-MR3420... Any One Guide Me .. Any Hardware Diagram For It .. i'm Android Dev And hardware Eng .. If U Provide Me Hardware Diagram Or Any Other Info i Will Add External Battery In It ...

I'm trying to replace my old router with the TL-MR3420 but I cannot reach Internet.

I get "Internet" directly by a Cable into my apartment. This Cable is connected to the WAN input. Then I connect my computer to one of the LAN ports. (The Cable Connections are done exactly as on my previous router.)

The setup on my PC (running Windows 8) is as described in the manual (IP address automatic and DNS server automatic).

Internet doesn't work and I cannot reach the router from the browser using 192.168.1.1.

I'm not using any 3G and of course I have restarted the router (and PC) a couple of times. I thought I could just replace my old router with the new one... but NOT.

Is remote administration over 3G connection possible? The telstra public IP is not pingable. (from externally) Goes no where when I put the public IP into a browser. (from externally) Any settings changes to enable this?

Just wonder if anyone using the same model of router and having bad connection with wireless? Its OK with the pc LAN (physical cable) connection but intermittent lost signal, request timeout when connect from notebook or iphone/ipad via wireless whether with DHCP or fixed internal IP.

I am having this issue since day 1, then upgrade the firmware by myself... Still no good. I keep the device into store send to warranty claim. After 2-3 months only get back the device, firmware being updated to above.. It seems to be OK for 1st week( i think) ... but now lost signal again.

Today i purchased brand new Tp-Link MR-3420 3G/4G router for my BSNL EVDO modem..as this product is shown to support ZTE AC8700 modem...but it doesnt seem to work.. I put the right dial-up number,user name and password that i use when i connect modem to laptop and left APN field blank...The modem gets identified by the router but it just don't connect to internet,it just keeps saying "connecting.....". Also the signal strength is shown 0%... If your modem is really supporting ZTE AC8700 modem why its not working?

my Huawei E353 dongle/modem is not recognised by the MR3420 router. The router functions perfectly with a different dongle (E122). The E353 works fine when connected directly to laptop so I am happy it is functioning fine. Could not find a bin file for the E353.

how to make hard reset to MR3420.I installed openwrt-mr3420-v2-HM2013-04-19 software to my router.and after that while the router restart the led green lights flashing on and of all the time.and I cant contact to the router with wifi or lan cable

My HUAWEI E367 Can't Detect in TL-MR3420.I don't know what to do and I'm already downgrade the frimware but it still can't detect my broadband. Then, I upgrade the frimware and it still can't detect my broadband.

I have owned the TL-MR3420 for about six months and never had any problems with it, 3G connection stable enough and wifi and LAN worked properly without any drops.About one week ago I started experiencing problems. Both wifi and LAN gets disabled and I need to pull the plug and do a hard reset to correct the issue. This only happens after some heavy use, many devices is connected to Wifi, streaming files over the WIfi and so on. A scenario may be the following; there are six devices back home using all using wifi. All of them are not connected at the same time, but four may be; usually three computers and one tablet. The HTPC may do some heavy videostreaming from another computer. When the streaming is over, some devices are shut down then I may lose the WIFI and LAN ability of the router.

I have tried connecting with cable after wifi were lost but no IP address where given to it and connection where refused. This means I have no possibility to access the log file in the router, and after reboot the log file is reset. Router settings is pretty much default.Is my device broken or is there any setting I may tweak with?I have updated to latest firmware and tried to change channel without success.

I have been usung TP link for years, and now I want to use the 3G modem option the 3420 offers. But in the list of countries I can't find Serbia, and I can't find the ZTE MF 195. I found that on the TP Links site list of compatible modems there is Other countries, but in the modem list there isn't such an option, and since there is also no ZTE MF 195, and there isn't a "Telenor" entry for the service provider.I tried telling the router that I'm from another country, and setting up some of the parameters manually, but "surprisingly" it didn't work. Is there or could someone make a program which makes BIN files specific to the modem that isn't on the list, or is there a place where the BIN files grow?

The TL-MR3420 recognizes my modem (Olivetti Olicard 160), but it does not connect to the 3G network. I tested the modem on my PC and it connects fine. The PIN verification is deactivated and the Modem configuration is the same as I use on the PC, however it just keeps trying to connect without success. I updated the firmware to the latest version.

My USB Modem HUAWEI E173 not work as well with TL-MR3420 Its lose Identify every almost 15 minutes , and try to Identify again and some times not successfully until I reboot the unit . then its Identify successfully , after some minutes the problem happen again and again . I think its from the router software issue that it have not the correct driver of the modem .

also , the signal of the wireless not that good like the other routers which I used before .

Whilst the MR3420 V2 is sold as a 4G usb router, it appears that it does not support many usb 4G devices.In Australia we currently have the Seirra 320u, ZTE MF821 (100Mbps Cat 3) and Huawei E3276 (150Mbps Cat 4)whilst the V2 supports the first two (not the E3276), it has one major failure!It does not work at full 4G speeds.

The V2 does not appear to allow download speeds in excess of 25Mbps or uploads much greater than 2Mbps. This occurs on fast 3G and 4G networks.The throttled speed is apparently due to slow modem protocols deployed in the router. High protocol overheads mean it cannot 'shuffle data' very fast.We have developed working solutions using the Openwork platform that overcome these issues and provides speeds in excess of 70mbps.

I am having problems with my TL-MR3420 router, it disconnects WIFI all the time. This occur several times a day and is very annoying.

I have quite recently upgraded to the latest firmware but the problem seem not to have been resolved. It also seem that it is mostly the WIFI service that is the problem. The usage of wired routing is working even when the WIFI is disabled.

I recently got a new email provider with a webmail. But I can not access the email from my home network. I have tried both my computers so I suspect that it can have something to do with my router. I have also set up the new email account in Outlook and in other networks it works fine, also the webaccess works fine in other networks. It seems that the problem is only related to my home network.i have talked to my ISP provider and they say that all is opened in there network. i have tried to clone the MAC address and that did not solve my problem. I also read the one could change the MTU size from default 1500 to 1440, that did not work either.

I have a TL-MR3420 router placed in a remote location. The internet connection is via 3G, and since the telco is shifting the IP every 24 hours, the router is configured with DDNS from no-ip.org. This is working OK most days, but sometimes the DNS fails to update. To be able to trobleshoot it, I am trying to make my router send a mail with the logfile every hour. This function seems to be easy and out-of-the-box, but it doesn't wiork. Whenever I try to mail the log I get the error message "Fail to Connect the mail server.".

It is not possible to enter another SMTP-port, so I asume the standard port 25 (like this thread). Most ISP-mail services require SSL/TLS and/or use an alternative port, so I have made my own server. This server is visible on the Internet, and I (and others) are able to connect and send mails using smtp on port 25. But, still my remote TL-MR3420 keep saying "Fail to Connect the mail server.". I have tried nearly everything, including disabling authentication and giving the IP-address of the smtp server directly instead of the URL.

I am using a MR3420 V2 together with a E398 modem. The connection works well, but I can't do any port forwarding (virtual server). Using another router (Tiny Dovado) with the same E398 modem works flawlessly to forward ports.